Associated compatible footprints to the following schematic symbols:

MCU_SiliconLabs:EFM8UB31F40G-A-QFN20
MCU_SiliconLabs:EFM8UB31F40G-A-QFN24
MCU_SiliconLabs:EFM8UB31F40G-A-QSOP24

MCU_SiliconLabs.lib

@@ -438,11 +438,12 @@ ENDDEF
 DEF EFM8UB31F40G-A-QFN20 U 0 40 Y Y 1 F N
 F0 "U" -500 600 50 H V C CNN
 F1 "EFM8UB31F40G-A-QFN20" 150 600 50 H V L CNN
-F2 "" 0 -1250 50 H I C CNN
+F2 "Package_DFN_QFN:SiliconLabs_QFN-20-1EP_3x3mm_P0.5mm_EP1.8x1.8mm" 0 -1250 50 H I C CNN
 F3 "" -750 100 50 H I C CNN
 $FPLIST
  QFN*20*1EP*3x3mm*P0.5mm*
  QFN*20*1EP*3x3mm*P0.5mm*EP*x*mm
+ SiliconLabs*QFN*1EP*3x3mm*P0.5mm*
 $ENDFPLIST
 DRAW
 P 5 0 1 10 -600 550 -600 -650 600 -650 600 550 -600 550 f
@@ -474,11 +475,12 @@ ENDDEF
 DEF EFM8UB31F40G-A-QFN24 U 0 40 Y Y 1 F N
 F0 "U" -500 600 50 H V C CNN
 F1 "EFM8UB31F40G-A-QFN24" 150 600 50 H V L CNN
-F2 "" 0 -1250 50 H I C CNN
+F2 "Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm" 0 -1250 50 H I C CNN
 F3 "" -750 100 50 H I C CNN
 $FPLIST
  QFN*24*1EP*4x4mm*P0.5mm*
  QFN*24*1EP*4x4mm*P0.5mm*EP*x*mm
+ SiliconLabs*QFN*24*1EP*4x4mm*P0.5mm*EP2.5x2.5mm
 $ENDFPLIST
 DRAW
 P 5 0 1 10 -600 550 -600 -650 600 -650 600 550 -600 550 f
@@ -515,11 +517,12 @@ ENDDEF
 DEF EFM8UB31F40G-A-QSOP24 U 0 40 Y Y 1 F N
 F0 "U" -500 600 50 H V C CNN
 F1 "EFM8UB31F40G-A-QSOP24" 150 600 50 H V L CNN
-F2 "" -750 100 50 H I C CNN
+F2 "Package_SO:QSOP-24_3.9x8.7mm_P0.635mm" 0 -1200 50 H I C CNN
 F3 "" -750 100 50 H I C CNN
 $FPLIST
  QSOP*24*3.9x8.65mm*P0.635mm
  QSOP*24*P0.635mm
+ SiliconLabs*QSOP*24*3.9x8.65mm*P0.635mm
 $ENDFPLIST
 DRAW
 P 5 0 1 10 -600 550 -600 -650 600 -650 600 550 -600 550 f